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IBM P2090-047 Exam Syllabus Topics:

IBM PureData System for Transactions Technical Mastery Test v1 Sample Questions:

Question 1

Columns in a table may be zonemapped. How are those columns chosen?

A. They are added via the ALTER TABLE ADD INDEX(column_name) statement.
B. They are based on the same columns as the table's distribution key.
C. They are automatically selected by the system.
D. They are added via the ALTER TABLE ADD ZONEMAP(column_name) statement.

Question 2

Why is generating statistics on a table important to query performance?

A. The Field Programmable Gate Array (FPGA) utilizes the statistics to identify which row/columns to filter.
B. The table statistics are used to facilitate disk space reclamation of deleted rows.
C. The Zone Map information cross references the table statistics for each column to avoid scanning.
D. The optimizer uses statistics to determine the optimal execution plan for queries.

Question 3

What is the naming convention for system views?

A. nz_v_...
B. _v_...
C. _$v_...
D. sys_v_...

Question 4

Which statement about the GROOM TABLE feature is true?

A. GROOM TABLE allows UPDATE, DELETE, and INSERT operations to occur while groom is in progress.
B. GROOM TABLE requires space to make a complete copy of the table.
C. GROOM TABLE prevents nzload from adding data while groom is in progress.
D. GROOM TABLE only operates on tables that include an ORGANIZE ON clause.

Question 5

When setting up a crontab entry, what must be done on a PureData System for Analytics server?

A. nzstop/nzstart the database.
B. Add entry to active host and standby host.
C. Create an nzcron event.
D. Stop and start the appliance.

Solutions: